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 */

package cart.hibernate.rating;

import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 *
 * @author BibooChung
 */
public class ManageRatingServlet extends HttpServlet {

    /**
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
     * methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();

        String action = request.getParameter("submit");
        long ratingId;
        try {
            ManageRating manager = new ManageRating();

            if("add".equals(action)){
                double newAvgRate = Double.parseDouble(request.getParameter("avgRate"));           
                long newNumOfRate = Long.parseLong(request.getParameter("numOfRate"));
                ratingId = manager.addRating(newAvgRate, newNumOfRate);
            }
            else if("delete".equals(action))
                manager.deleteRating(Long.parseLong(request.getParameter("ratingId")));
            else if("update".equals(action)) { 
                long id = Long.parseLong(request.getParameter("ratingId"));
                double newAvgRate = Double.parseDouble(request.getParameter("avgRate"));
                long newNumOfRate = Long.parseLong(request.getParameter("numOfRate"));

                manager.updateRating(id, newAvgRate, newNumOfRate);
            } else
                throw new IOException();


            /* TODO output your page here. You may use following sample code. */
            out.println("<!DOCTYPE html>");
            out.println("<html>");
            out.println("<head>");
            out.println("<title>Servlet ManageActorServlet</title>");            
            out.println("</head>");
            out.println("<body>");
            out.println("<h1>Success</h1>");
            out.println("</body>");
            out.println("</html>");
        } catch (IOException e) {
            System.err.println("Form submit value is changed\nError stack trace :\n");
            e.printStackTrace();
        } finally {
            out.close();
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short numOfRate of the servlet.
     *
     * @return a double containing servlet numOfRate
     */
    @Override
    public String getServletInfo() {
        return "Short Description";
    }// </editor-fold>

}
